title: Correlation of visual functions with macular thickness in primary open angle glaucoma.
abstract: OBJECTIVE
  The aim of this study was to establish a correlation between macular thickness on optical coherence tomography (OCT) and 2 visual functions (visual acuity and contrast sensitivity [CS]) in established cases of primary open angle glaucoma (POAG).
  
  
  METHODS
  A total of 50 consecutive patients of established POAG between 40 years and 70 years of age attending the glaucoma clinic of a tertiary care eye center in North India were enrolled for this cross-sectional study. Best corrected visual acuity (BCVA), CS and macular thickness by spectral-domain-OCT (Cirrus HD-OCT, CarlZeiss, Germany) were evaluated.
  
  
  METHODS
  The groups were compared together by one factor analysis of variance and the significance of mean difference between the groups was done by Newman-Keuls test.
  
  
  RESULTS
  Newman-Keuls test revealed a direct relationship of macular thickness to BCVA and CS (P < 0.05).
  
  
  CONCLUSIONS
  BCVA and CS are directly related to the macular thickness on OCT.
authors.affiliation: Department of Ophthalmology, King Georges' Medical University, Lucknow, Uttar Pradesh, India.
authors.forename: Siddharth
authors.initials: S
authors.lastname: Agrawal
authors.forename: Vinita
authors.initials: V
authors.lastname: Singh
authors.forename: Shashi Kumar
authors.initials: SK
authors.lastname: Bhasker
authors.forename: Bhumika
authors.initials: B
authors.lastname: Sharma
keywords: Contrast sensitivity; macular thickness; optical coherence tomography; primary open angle glaucoma; visual acuity